In a galvanized steel plate that carries the designation G60, the number 60 means that
A) the total mass of zinc coating on both surfaces of the plate is 60 g/ft2.
B) the total mass of zinc coating on both surfaces of the plate is 60 oz/ft2.
C) the total mass of zinc coating on each surface of the plate is 60 oz/ft2.
D) the total mass of zinc coating on each surface of the plate is 60 g/ft2.
E) none of the above.
E) none of the above.
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The diagnosis of a faulty contactor encompasses three sections of the contactor: the coil, the contacts, and the ____________________.
Fill in the blank(s) with the appropriate word(s).
A piping system that has the main supply pipe from the boiler enter the first baseboard unit, all baseboard sections connected in series, and the outlet from the last baseboard section connected to the circulator pump, which connects to the boiler is called a
A) Series loop, double circuit B) Two pipe, reverse return hot water piping system C) Series loop, single circuit hot water piping system D) One pipe, venturi piping system
Two-speed wiper motors generally use ________ to achieve the two speeds
A) Cams B) Speed control brushes C) Reduction gear transmission D) Gear reduction
Memory storage can be accomplished with
A) registers. B) magnetic material. C) latches. D) all of the above.